Did some googling and found that someone in AL sells all kinds of gun prints. I don't know anything else about them or what the coverage/quality is. The below link shows a big list of all the ones he has available.

Bet they are the same prints drawn by W.E.S. on 7-19-90 I used twenty years ago on my 4340 billet receivers. You would think factory prints would have leaked being made in several countries as far back as the 50's. Seems like DSA use to advertise they used factory prints in receiver manufacturing. Down in Aussie land is there the "Freedom of Information Act"? If the FAL was made in a Aussie Gov't Arsenal Plant might be a possibility.